Murphy said he submitted his retirement letter to Oak Creek Police Chief John Edwards Wednesday morning.

Murphy said his retirement will be effective June 12.

Murphy was the first officer on the scene after reports of a shooter at the Sikh Temple of Wisconsin on Aug. 5. As his own squad car video showed, the two exchange gunfire. A bullet first struck Murphy's face, damaging his vocal cords. He moved over and down, but the shooter persisted. Murphy was hit several more times and took cover under a vehicle.

"It got quiet. It got very warm," Murphy said. "Your eyes start getting a little bit heavy and I thought, I'm not going out like this. I refuse to go out on a parking lot; not happening.'"

So he started crawling toward his squad car in an attempt to get his shotgun, as his revolver had fallen from his hands after his left thumb was shot.

"The shooter came around again and he fired a bunch more times," Murphy said. "At one point -- it was after he hit me in the back of the head -- I just thought, is that not enough? Did you not shoot me enough times?"

Murphy was shot 15 times in all -- 12 hit his body, three went into his protective vest. He stayed conscious and calm the whole time.

He said he is not sure what his retirement plans will hold, but he has thought about teaching.

He also said his family may take a trip to India this summer as the guests of some Sikhs who wish to thank him for his service.